Endicott Rock State Historic Site

Endicott Rock may be the oldest public monument in New England. The name of John Endicott, Governor of Massachusetts Bay, and the initials of Edward Johnson and Simon Willard, Commissioners of the Massachusetts Bay Colony, and of John Sherman and Jonathan Ince, Suveyors, were inscribed on the rock on August 1, 1652. The rock marked the assumed headwaters of the Merrimack River. Under the original Bay Charter of 1629, the northern boundary of the colony was fixed as a line three miles north of the Merrimack.

Operating Schedule

This park is always open for recreation unless closed or restricted by posting. During the off-season the park is typically not staffed and comfort stations are not available.

The off-season poses unique risks inherent when participating in outdoor recreational activities. Please be aware that many State Park areas and trails are not staffed during the off-season, and day-use fees are not collected. Recreationists should possess the necessary knowledge, skill, and equipment to ensure their own safety. Users assume all risk while recreating in State Park lands.